--- /tmp/MediaViewHelper.php	2021-10-07 12:05:47.908955924 +0200
+++ source/typo3/sysext/fluid/Classes/ViewHelpers/MediaViewHelper.php	2021-10-07 12:32:37.407039761 +0200
@@ -156,8 +156,16 @@
             }
         }
         $this->tag->addAttribute('src', $imageUri);
-        $this->tag->addAttribute('width', $processedImage->getProperty('width'));
-        $this->tag->addAttribute('height', $processedImage->getProperty('height'));
+        if('svg' == $image->getProperty('extension'))
+        {
+          if(0 < $width)  $this->tag->addAttribute('width', $width);
+          if(0 < $height) $this->tag->addAttribute('height', $height);
+        }
+        else
+        {
+          $this->tag->addAttribute('width', $processedImage->getProperty('width'));
+          $this->tag->addAttribute('height', $processedImage->getProperty('height'));
+        }
         if (in_array($this->arguments['loading'] ?? '', ['lazy', 'eager', 'auto'], true)) {
             $this->tag->addAttribute('loading', $this->arguments['loading']);
         }